ESI VideoBridge 2150, Service Manual

Page: 15 / 332

DANGER
E L E CTR ICAL SHOCK HAZARD E X ISTS WHEN A B IAS S UPPL Y IS
CON N E CTED TO TH IS INSTRUMEN T . USER SUPPL IE D B IAS VOLTA GE MA Y
BE PRESENT AT INSTRUMENT TERMINALS AND TEST F IXTURES .
USE
ONL Y B IAS VOLTA GES UP TO + 2 00VD C AND B IAS S UPPL IES CURRENT
L IM ITED AT
lOOmA.
DO NOT TOUCH , CONNE CT
I
OR D IS CONN E CT THE
U N K N O WN CO M P ON E N T OR B N C CA B L E S W H IL E A B IA S V O L TA GE IS
APPL IED . FAIL URE TO OBSERVE T H IS WARN IN G MA Y RESULT IN S EVERE
INJUR Y
OR
DEAT H .
ELECTRICAL SHOCK HAZARD EXISTS WHEN BIAS SUPPLIES ARE
CONNECTED TO THIS INSTRUMENT. WHEN EXTERNAL BIAS SUPPLIES
ARE ATTACHED, THE BIAS VOLTAGES ARE PRESENT ON THE REAR PANEL
BNC CONNECTORS.
USE ONLY BIAS VOLTAGES UP TO
+50VDC
WITH
EACH BIAS SUPPLY CURRENT LIMITED AT
lOOmA.
DO
NOT TOUCH,
C O N N E CT, OR DISCONNECT THE MEASURED COMPONENT OR THE BNC
CABLES WHILE BIAS VOLTAGES ARE APPLIED.
TO PREVENT POSSIBLE ELECTRICAL SHOCK OR DAMAGE TO THE
INSTRUMENT, CHECK LOCAL ELECTRICAL STANDARDS BEFORE SELECTING
A P O W ER CORD.
THE INFORMATION PRESENTED HERE MAY NOT BE
CORRECT FOR ALL LOCATIONS WITHIN THE REFERENCED AREAS.
TO AVOID PERSONAL INJURY FROM ELECTRIC SHOCK
DO
NOT REMOVE
I N S TRUMENT COVERS OR PERFORM ANY M AINTENANCE OTHER THAN
DES CRIBED IN THIS MANUAL.
INSTALLATION AND MAINTENANCE
PROCEDURES DESCRIBED IN THIS MANUAL ARE TO BE PERFORMED BY
QUALIFIED SERVICE PERSONNEL ONLY.
REMOVAL OF INSTRUMENT COVERS MAY CONSTITUTE AN ELECTRICAL
HAZARD AND SHOULD BE ACCOMPLISHED BY QUALIFIED SERVICE
PERSONNEL ONLY.
TO AVOID ELECTRIC SHOCK FROM DANGEROUSLY HIGH VOLTAGES, USE
THE FOLLOWING PROCEDURES ONLY WHEN TROUBLESHOOTING THE ANALOG
A N D D IGITAL CIRCUITS OF THIS INSTRUMENT. DO NOT USE THIS
PROCEDURE TO TROUBLESHOOT THE POWER SUPPLY OR CRT CIRCUITRY.
s
-
2
e/s/i
2150/2160 5/85